Virtual Effects of Split SUSY in Higgs Productions at Linear Colliders

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dc.creatorWang, Fei
dc.creatorWang, Wenyu
dc.creatorXu, Fuqiang
dc.creatorYang, Jin Min
dc.creatorZhang, Huanjun
dc.date2006-12-21
dc.date2007-02-21
dc.date.accessioned2026-07-07T11:02:26Z
dc.date.available2026-07-07T11:02:26Z
dc.descriptionIn split supersymmetry the gauginos and higgsinos are the only supersymmetric particles possibly accessible at foreseeable colliders like the CERN Large Hadron Collider (LHC) and the International Linear Collider (ILC). In order to account for the cosmic dark matter measured by WMAP, these gauginos and higgsinos are stringently constrained and could be explored at the colliders through their direct productions and/or virtual effects in some processes. The clean environment and high luminosity of the ILC render the virtual effects of percent level meaningful in unraveling the new physics effects. In this work we assume split supersymmetry and calculate the virtual effects of the WMAP-allowed gauginos and higgsinos in Higgs productions e+e- -> Z h and e+e- -> ν_e \bar_ν_e h through WW fusion at the ILC. We find that the production cross section of e+e- -> Zh can be altered by a few percent in some part of the WMAP-allowed parameter space, while the correction to the WW-fusion process e+e- -> ν_e \bar_ν_e h is below 1%. Such virtual effects are correlated with the cross sections of chargino pair productions and can offer complementary information in probing split supersymmetry at the colliders.
dc.descriptionmore discussions added (7 pages, 10 figs)
dc.identifierhttps://arxiv.org/abs/hep-ph/0612273
dc.identifierhttp://arxiv.org/abs/hep-ph/0612273
dc.identifierEur.Phys.J.C51:713-719,2007
dc.identifierdoi:10.1140/epjc/s10052-007-0294-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188251
dc.subjectHigh Energy Physics - Phenomenology
dc.titleVirtual Effects of Split SUSY in Higgs Productions at Linear Colliders
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